The most common elements in organic compounds are C, O, and H. These are respectively carbon, oxygen, and Hydrogen.
Answer:
Wild garlic mustard is a highly destructive invasive species in the United States, but anyone can help stop its spread.
Explanation:
1. The answer is B. the asthenosphere
Asthenosphere is a layer of the Earth situated below the lithosphere. It is a semi-fluid and ductile rock or partly molten rock. Due to semi-fluid state of asthenospheric rock, it behave like a plastic and flow gradually. Thus, causes movement of continents.
2. The answer is C. collision between tectonic plates
The Earth’s crust becomes unstable when tectonic plates meet. As the plates slide past each other and push against each other. This causes earthquakes and volcanic eruptions at the edge between the plates.
